Hi Ramya,

Tx path of UART is working but the Rx part not due to missing interrupts. In the Tx part interrupts are not really required - alt least not for Hello World. I also don't care about the missing "H" right now. So the first step would be polling the fiasco UART every 100ms or so instead of waitung for interrupts.


Best regards,
   Martin


I don't care abount the missing "H", this could be anything.

Am 29.08.2014 17:45, Masti Ramya Jayaram schrieb:
Hey Martin,

No I just realized that ESC does not break into the debugger. But I can clearly see that the 
process instead of printing "Hello world" prints "ello World" :)

What could the reason be?

Thanks,
Ramya
________________________________________
From: l4-hackers [l4-hackers-boun...@os.inf.tu-dresden.de] on behalf of Martin 
Schröder [martin.schroe...@openlimit.com]
Sent: 29 August 2014 17:35
To: l4-hackers@os.inf.tu-dresden.de
Subject: Re: Minimal requirements to run L4linux using only a serial console

Hi Ramya,

a: No, its not a must. The UART could also be polled (by a timer) to see if 
something arrived.
b: At least regarding l4linux there is nothing more to it - afaik.

But let's go back to the hello word example on the SCC. What happens if you press the 
<ESC> key? Does it break into the JDB debugger?

Best regards,
     Martin


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